pokecrystal-board/engine/battle/check_battle_scene.asm
2018-06-24 16:13:22 +02:00

48 lines
586 B
NASM

CheckBattleScene:
; Return carry if battle scene is turned off.
ld a, BANK(wLinkMode)
ld hl, wLinkMode
call GetFarWRAMByte
cp LINK_MOBILE
jr z, .mobile
ld a, [wOptions]
bit BATTLE_SCENE, a
jr nz, .off
and a
ret
.mobile
ld a, [wcd2f]
and a
jr nz, .from_wram
ld a, 4 ; MBC30 bank used by JP Crystal; inaccessible by MBC3
call GetSRAMBank
ld a, [$a60c] ; address of MBC30 bank
ld c, a
call CloseSRAM
ld a, c
bit 0, c
jr z, .off
and a
ret
.from_wram
ld a, BANK(w5_dc00)
ld hl, w5_dc00
call GetFarWRAMByte
bit 0, a
jr z, .off
and a
ret
.off
scf
ret